User-Agent

okhttp/4.12.0

first seen 2026-07-28 23:15 · last seen 2026-09-18 17:51 · JSON

Decomposed attributes

Browser / clientokhttp 4.12.0
Noteinferred from the self-declared string — a claim, not a measurement; compare with the wire fingerprints above

Co-observed signals

Signals from other families seen in the same observation. A fingerprint spread thinly across many lower-layer signatures is a classic inconsistency signal.

TLS ClientHello (JA4)

fingerprintco-occurrences
t13d1513h2_8daaf6152771_eca864cca44a16
t13d1514h2_8daaf6152771_43ade6aba3df3
t13d1114h2_5e2a75874763_89e9e4bb34191
t12d0812h2_6aee0a5c6037_70b99c08f4661

HTTP request (JA4H)

fingerprintco-occurrences
ge20nn020000_b89ce445e0b3_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: go-net/http 1.21.13, go-net/http 1.27.1, go-net/http 1.27.3, +14 more.The fingerprint page shows the full measured match list. More on the catalog.10
ge20nn020000_fb4f949fd323_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: powershell 7.6.6, powershell 7.6.9, powershell 7.6.8.The fingerprint page shows the full measured match list. More on the catalog.5
ge20nn04enus_39a3ba4480e8_000000000000_000000000000 Match?Exact match in Thumbprint's published controlled catalog captures: urlsession 6.1.2.The fingerprint page shows the full measured match list. More on the catalog.3
ge20nn030000_ff50983941c1_000000000000_0000000000002
ge20nn050000_de1433f8c918_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
4:16777216|16711681|0|m,p,a,s21

TCP SYN (p0f)

fingerprintco-occurrences
4:117+11:0:1440:65535,8:mss,nop,ws,sok,ts:df,id+:011
4:48+16:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:05
4:50+14:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:03
4:54+10:0:1460:mss*44,10:mss,sok,ts,nop,ws:df,id+:02

TCP SYN (JA4T)

fingerprintco-occurrences
65535_2-1-3-4-8_1440_811
64240_2-4-8-1-3_1460_1010

Country

fingerprintco-occurrences
RU · Russia11
US · United States7
NL · Netherlands3

Network (ASN)

fingerprintco-occurrences
AS12389 · PJSC Rostelecom11
AS132892 · Cloudflare, Inc.7
AS202623 · Cloudflare Inc3